accumulative timing

accumulative timing

[ə′kyü·myə‚lād·iv ′tīm·iŋ]
(industrial engineering)
A time-study method that allows direct reading of the time for each element of an operation by the use of two stopwatches which operate alternately.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.